Yes, I repair most things myself. It's not just the cost of hiring someone, it's waiting for them to have time, having them actually show up when they say they will (waiting around all day for someone who doesn't show is one of my least favorite activities). And then I've found that tradesmen often leave a mess behind them, or end up damaging something else in the process, like dropping their tools on a tile floor and chipping tiles, or smearing dirty greasy fingerprints or glue on something.
My dad was a mechanical engineer, so I luckily seem to have inherited that brain. And I remember my maternal grandma getting up on ladders fixing things all the time, so she must have been quite handy as well, although I never really thought about that when I was a kid.
I wouldn't attempt major wiring jobs, as I know nothing about electricity, and I hate anything to do with carpentry, but gluing plumbing pipes together is a no-brainer once you watch someone do it a time or two, as is painting, lamp repair, changing out capacitors in fans that start to spin slowly, and changing out door locks.
I can't say I enjoy having to add a fix-it job to my list of chores, but I don't mind the process of repair and at least I don't wreck other things by being careless. And it feels pretty good to be able to fix stuff yourself.
And I'll share a tip for those who have shiny tiles anywhere that may get a chip in them- nail polish works great. It comes in so many colors, you can usually find a close match.